Campanula plant named ‘PSDBH15701’

ABSTRACT

A new and distinct  Campanula  plant named ‘PSDBH15701’, characterized by its compact, upright to spreading and uniformly mounding plant habit; freely flowering habit; dark violet-colored flowers with white-colored centers; and good container and garden performance.

Botanical designation: Campanula poscharskyana.

Cultivar denomination: ‘PSDBH15701’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct Campanula plant, botanically known as Campanula poscharskyana and hereinafter referred to by the cultivar name ‘PSDBH15701’.

The new Campanula plant is a product of a planned breeding program conducted by the Inventor in Twello, The Netherlands. The objective of the breeding program is to create new compact and freely-flowering Campanula plants with attractive flower colors and good container and garden performance.

The new Campanula plant originated from a cross-pollination in August, 2012 of a proprietary selection of Campanula poscharskyana identified as code number PSDBH1200302S, not patented, as the female, or seed, parent with a proprietary selection of Campanula poscharskyana identified as code number PSDB-1300101S, not patented, as the male, or pollen, parent. The new Campanula plant was discovered and selected by the Inventor as a single flowering plant from within the progeny of the stated cross-pollination grown in a controlled greenhouse environment in Twello, The Netherlands in July, 2014.

Asexual reproduction of the new Campanula plant by terminal vegetative cuttings in a controlled greenhouse environment in Twello, The Netherlands, since November, 2014, has shown that the unique features of the new Campanula plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Campanula plant have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘PSDBH15701’. These characteristics in combination distinguish ‘PSDBH15701’ as a new and distinct Campanula plant:

-   -   1. Compact, upright to spreading and uniformly mounding plant         habit.     -   2. Freely flowering habit.     -   3. Dark violet-colored flowers with white-colored centers.     -   4. Good container and garden performance.

Plants of the new Campanula differ primarily from plants of the female parent selection in flower color as plants of the new Campanula have more intense violet-colored flowers with larger white-colored centers.

Plants of the new Campanula differ primarily from plants of the male parent selection in the following characteristics:

-   -   1. Plants of the new Campanula have shorter lateral branches         than plants of the male parent selection.     -   2. Plants of the new Campanula and the male parent selection         differ in flower color as plants of the new Campanula have dark         violet-colored flowers with white-colored centers whereas plants         of male parent selection have dark purple-colored flowers.

Plants of the new Campanula can be compared to plants of Campanula poscharskyana ‘PSDBH11301’, not patented. In side-by-side comparisons conducted in Twello, The Netherlands, plants of the new Campanula differ primarily from plants of ‘PSDBH11301’ in the following characteristics:

-   -   1. Plants of the new Campanula are more compact than plants of         ‘PSDBH11301’.     -   2. Leaves of plants of the new Campanula are lighter green in         color than leaves of plants of ‘PSDBH11301’.     -   3. Flowers of plants of the new Campanula are larger than         flowers of plants of ‘PSDBH11301’.     -   4. Flowers of plants of the new Campanula have larger         white-colored centers than flowers of plants of ‘PSDBH11301’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Campanula plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the actual colors of the new Campanula plant.

The photograph on the first sheet is a side perspective view of a typical flowering plant of ‘PSDBH15701’ grown in a container.

The photograph on the second sheet is a close-up view of a typical flowering plant of ‘PSDBH15701’.

DETAILED BOTANICAL DESCRIPTION

Plants used for the aforementioned photographs and following description were grown in 11-cm containers during the summer in a glass-covered greenhouse in Poeldijk, The Netherlands and under cultural practices typical of commercial Campanula production. During the production of the plants, day temperatures ranged from 18° C. to 28° C., night temperatures ranged from 14° C. to 20° C. and light levels averaged 6,000 lux. Plants were 13 weeks old when the photographs and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2015 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Campanula poscharskyana ‘PSDBH15701’. -   Parentage:     -   -   Female parent.—Proprietary selection of Campanula             poscharskyana identified as code number PSDBH1200302S, not             patented.         -   Male parent.—Proprietary selection of Campanula             poscharskyana identified as code number PSDB-1300101S, not             patented. -   Propagation:     -   -   Type.—By terminal vegetative cuttings.         -   Time to initiate roots, summer.—About seven to ten days at             temperatures about 23° to 24° C.         -   Time to initiate roots, winter.—About ten to twelve days at             temperatures about 22° to 23° C.         -   Time to produce a rooted young plant, summer.—About 36 days             at temperatures about 23° to 24° C.         -   Time to produce a rooted young plant, winter.—About 42 days             at temperatures about 22° to 23° C.         -   Root description.—Fine, fleshy; typically white in color,             actual color of the roots is dependent on substrate             composition, water quality, fertilizers, substrate             temperature and physiological age of roots.         -   Rooting habit.—Moderately freely branching; medium density. -   Plant description:     -   -   Plant and growth habit.—Herbaceous perennial; compact,             upright to spreading and uniformly mounding plant habit;             flattened globular in shape; moderately vigorous growth             habit; moderate growth rate; numerous campanulate flowers             positioned above and beyond the foliar plane.         -   Plant height, soil level to top of foliar plane.—About 16.2             cm.         -   Plant height, soil level to top of floral plane.—About 18.4             cm.         -   Plant width.—About 41.9 cm.         -   Lateral branch description.—Branching habit: Freely             branching habit with about 48 lateral branches developing             per plant. Length (excluding inflorescences): About 15.9 cm.             Diameter: About 2.5 mm. Internode length: About 1.6 cm.             Strength: Moderately strong. Aspect: Upright to horizontal.             Texture and luster: Smooth, glabrous; glossy. Color,             developing: Close to 144B. Color, developed: Close to 146D. -   Leaf description:     -   -   Arrangement.—Alternate, simple.         -   Length.—About 2.8 cm.         -   Width.—About 3 cm.         -   Shape.—Deltoid to reniform.         -   Apex.—Broadly and bluntly acute.         -   Base.—Developing leaves, broadly attenuate; developed             leaves, cordate.         -   Margin.—Coarsely and irregularly dentate.         -   Texture and luster, upper and lower surfaces.—Smooth,             glabrous; slightly glossy.         -   Venation pattern.—Pinnate.         -   Color.—Developing leaves, upper surface: Close to between             137C and 143A. Developing leaves, lower surface: Close to             138B. Fully expanded leaves, upper surface: Close to 137B;             venation, close to 145A. Fully expanded leaves, lower             surface: Close to 138B; venation, close to 145B.         -   Petioles.—Length: About 3.2 cm. Diameter: About 1 mm by             1.5 mm. Strength: Low. Texture and luster, upper and lower             surfaces: Smooth, glabrous; glossy. Color, upper surface:             Close to 145C; margins, close to 144A. Color, lower surface:             Close to 145B. -   Flower description:     -   -   Flower arrangement and flowering habit.—Single campanulate             flowers arranged in terminal and axillary simple cymes;             flowers face mostly upright to outwardly; freely flowering             habit with about 2,500 flowers develop per plant during the             flowering season.         -   Natural flowering season.—Plants begin flowering about ten             weeks after planting; relatively long flowering period,             plants flower continuously from the spring into the autumn             in The Netherlands.         -   Flower longevity on the plant.—About ten days; flowers             persistent.         -   Fragrance.—Faint; slightly moldy.         -   Flower buds.—Length: About 8 mm. Diameter: About 1.3 cm.             Shape: Oblong. Texture and luster: Smooth, glabrous; glossy.             Color: Close to 91B to 91C; fading towards the base to close             to 91D and 145D.         -   Inflorescence height.—About 3.3 cm.         -   Inflorescence diameter.—About 3.5 cm.         -   Flower diameter.—About 1.2 cm.         -   Flower depth (height).—About 2.5 cm.         -   Petals.—Quantity and arrangement: Typically five per flower,             arranged in a single whorl; lower 30% of the petal is fused.             Length: About 1.4 cm. Width: About 6 mm. Shape: Obovate;             free parts, slightly recurved. Apex: Acute. Margin: Entire;             not undulate. Texture and luster, upper surface: Smooth,             glabrous; slightly velvety; matte. Texture and luster, lower             surface: Smooth, glabrous; slightly glossy. Color: When             opening, upper surface: Close to between 86C and N87B;             towards the throat and throat, close to NN155D. When             opening, lower surface: Close to between N87D and N88D;             towards the tube and tube, close to NN155D. Fully opened,             upper surface: Close to between N87A and N88A; towards the             throat and throat, close to NN155D; venation, similar to             lamina colors; colors do not change with development. Fully             opened, lower surface: Close to N88C; towards the tube and             tube, close to NN155D; venation, similar to lamina colors;             colors do not change with development.         -   Sepals.—Quantity and arrangement: Typically five per flower,             arranged in a single whorl. Length: About 7 mm. Width: About             2 mm. Shape: Lanceolate. Apex: Acute. Base: Broadly cuneate.             Margin: Entire. Texture and luster, upper and lower             surfaces: Smooth, glabrous; slightly glossy. Color: When             opening and fully opened, upper surface: Close to 143B. When             opening and fully opened, lower surface: Close to 138B.         -   Peduncles.—Length: About 3.2 cm. Diameter: About 1 mm.             Aspect, flowers in terminal inflorescences: Mostly upright.             Aspect, flowers in axillary inflorescences: About 30° from             lateral branch axis. Strength: Moderately strong. Texture             and luster: Smooth, glabrous; glossy. Color: Close to 144C.         -   Pedicels.—Length: About 1.1 cm. Diameter: About 0.75 mm.             Aspect: About 30° from peduncle axis. Strength: Moderately             strong. Texture and luster: Smooth, glabrous; moderately             glossy. Color: Close to 144C.         -   Reproductive organs.—Stamens: Quantity: Typically five per             flower. Filament length: About 1.5 mm. Filament color: Close             to NN155D. Anther length: About 3 mm. Anther diameter: About             0.2 mm. Anther shape: Narrowly oblong. Anther color: Close             to 11D. Pollen amount: Scarce to moderate. Pollen color:             Close to 4D. Pistils: Quantity per flower: One. Pistil             length: About 8 mm. Style length: About 6.5 mm. Style color:             Close to NN155B. Stigma diameter: About 2.5 mm. Stigma             shape: Three-parted, decurrent. Stigma color: Close to 91C             to 91D. Ovary color: Close to 143C.         -   Seeds and fruits.—To date, seed and fruit development has             not been observed on plants of the new Campanula. -   Pathogen & pest resistance: To date, plants of the new Campanula     have not been noted to be resistant to pathogens and pests common to     Campanula plants. -   Garden performance: Plants of the new Campanula have exhibited good     garden performance and to tolerant to rain, wind, high temperatures     about 35° C. and to be suitable for USDA Hardiness Zones 3 to 9. 

It is claimed:
 1. A new and distinct Campanula plant named ‘PSDBH15701’ as illustrated and described. 